Walter Four Terminal Sampling Resistor FHCL Series Selection Manual and Purchase Address: Click on the image to enter
The four terminal sampling resistor refers to having four sampling electrodes to separate the current and voltage, reducing mutual interference between the current and voltage, and improving detection accuracy. The four terminal sampling resistor also plays a role in current detection and voltage detection in the circuit. The resistance value is controlled within ≤ 0.1R=100mR=100m Ω, and the main material is copper alloy. The four terminal sampling resistor can be divided into pure metal alloy resistor and metal foil alloy resistor. Pure metal alloy resistors have strong impact resistance, while metal foil alloy resistors have good heat dissipation and temperature rise effects. Below is a comprehensive introduction to the HFCL series of Suzhou Walter electronic four terminal sampling resistors.
Suzhou Walter four terminal sampling resistor HFCL series has the following advantages:
1. Wide range of volume options: 0603,1206,1508,2512,3008,3015,3618,3921
2. Wide range of resistance options: 1mR~25mR
3. Wide range of power options: 1W~5W
4. High accuracy: △ ≤ 1%
5. Low temperature coefficient: TCR ＜ 50ppm/℃
6. High frequency response: H ＜ 5.0nH
7. Excellent low galvanic effect (EMF<0.5uV/℃)
8. How to use RoHS and REACH halogen-free standards
9. The anti welding layer complies with UL94-V0 level
10. Low inductance (<0.05uH 10MHz)
11. Simultaneously collecting current and voltage for higher accuracy
The Naming convention of the four terminal sampling resistor HFCL series of Suzhou Huade Electronic Walter are as follows:
| HFCL | 2512 | M | 2W0 | R001 | F | S |
| 1 | 2 | 3 | 4 | 5 | 6 | 7 |
1: Product series:HFCL series, metal ceramic alloy current detection resistor, long electrode, four terminals, With lateral guide
2: Volume: 2512=6432=6.4 * 3.2mm
3: Material: M=Manganese copper alloy=MnCu alloy
4: Power: 2W0=2.0Watt
5: Resistance value: R001=0.001R=1mR
6: Accuracy: D=0.5%, F=1%
8: Product code: internal code or custom code
The selection parameters of Suzhou Huade Electronics Walter four terminal sampling resistor HFCL series are shown in the table below:
|
Part Number |
Resistance Value (mΩ) |
Power Rating (Watt) |
Resistance Tolerance (%) |
TCR (ppm/℃) |
| HFCL0603MW33R | 1~4 | 0.33 | ±1%（F） | ±100ppm |
| 5~25 | 0.33 | ±0.5%（D）±1%（F） | ±50ppm | |
| HFCL1206M1W0R | 1~4 | 1 | ±1%（F） | ±100ppm |
| 5~25 | 1 | ±0.5%（D）±1%（F） | ±50ppm | |
| HFCL2512M2W0R | 1~4 | 2 | ±1%（F） | ±100ppm |
| 5~25 | 2 | ±0.5%（D）±1%（F） | ±50ppm | |
| HFCL3015M2W0R | 1~4 | 2 | ±1%（F） | ±100ppm |
| 5~25 | 2 | ±0.5%（D）±1%（F） | ±50ppm | |
| HFCL3618M3W0R | 1~4 | 3 | ±1%（F） | ±100ppm |
| 5~25 | 3 | ±0.5%（D）±1%（F） | ±50ppm | |
| HFCL3921F4W0R | 1~4 | 3 | ±1%（F） | ±100ppm |
| 5~25 | 3 | ±0.5%（D）±1%（F） | ±50ppm |
Walter four terminal sampling resistor HFCL series functional characteristics:
|
Parameter |
Conditions |
Consent Standard |
|
Short time over load |
Power=2.5*Pr ; T=25±2℃ ; t=5s |
± (1.0%+0.5mΩ) IEC60115-1 4.13
|
|
High temp. exposure |
T=+155±2℃; t=1,000hrs |
± (1.0%+0.5mΩ) IEC60115-1 4.25 |
|
Low temp. load life |
T=-55±2℃ ; t=1,000hrs |
± (1.0%+0.5mΩ) IEC60115-1 4.25 |
|
Moisture load life |
Vtest=Vmax, ton=90min,toff=30min, T=60±2℃,RH=95%,1,000hrs |
± (2.0%+0.5mΩ) IEC60115-1 4.25 |
|
Thermal shock |
[-55℃ 30min→ R.T. 3min→ +150℃ 30min→ R.T. 3min] by 100 Continuous Cycles |
± (1.0%+0.5mΩ) IEC60115-1 4.19 |
|
Load life at 70℃ |
Vtest=Vmax ; T=70±2℃ ; t=90min On t=30min Off; 1,000hrs |
± (2.0%+0.5mΩ) IEC60115-1 4.25 |
|
Solderability |
Dipped into solder at 245±5℃ for 3±1s |
The covered area >95% IEC60115-1 4.17 |
|
Resistance to solder heat |
20±1s at 275±5℃ |
±（1%＋0.5mΩ） IEC60115-1 4.18 |
|
Substrate bending |
Span between fulcrums: 90mm; Bend width: 2mm; Test board: Glass-epoxy board, Thickness=1.6mm by 10 continuous cycles |
±（1%＋0.5mΩ） IEC60115-1 4.33 |
|
Mechanical shock |
a=100G for 11ms, 5 Pulse |
±（1%＋0.5mΩ） IEC60115-1 4.21 |
